a) MM Ltd is a British sports-fashion retail company based in Bury, Greater Manchester, England. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index. MM Ltd currently has £60 million in debt outstanding. In addition to 7% interest, it plans to repay 10% of the remaining balance each year. If MM Ltd has a marginal corporate tax rate of 19%, and if the interest tax shields have the same risk as the loan, what is the present value of the interest tax shield from the debt?
b) AA Ltd is a major British multinational retailer with headquarters in London, England, that specialises in selling clothing, home products and food products. AA Ltd has just issued £50 million in debt (at par). The firm will pay a perpetual interest-only debt, with a 6% annual coupon. AA Ltd's marginal tax rate is expected to be 19% for the foreseeable future. AA Ltd's current cost of debt capital is 6%. What is the present value of the interest tax shield? [3 marks]